1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
docker41 [41]
3 years ago
8

What is the arrangement of the modern periodic table based upon

Chemistry
1 answer:
nikitadnepr [17]3 years ago
4 0

Answer:

The modern table is a list of elements based on the number of protons in the nucleus.

Explanation:

That’s the positive charge of the nucleus. Then it is organised into rows and columns based on repeating patterns of chemical similarity within that series, other words “periodicity”. That is why it is called the periodic table.

You might be interested in
4. Write the electronic configuration of first 20 elements in the periodic table.
DIA [1.3K]

Answer:

Name Atomic Number Electron Configuration Period 1 Hydrogen 1 1s1 Helium 2 1s2 Period 2 Lithium 3 1s2 2s1 Beryllium 4 1s2 2s2 Boron 5 1s2 2s22p1 Carbon 6 1s2 2s22p2 Nitrogen 7 1s2 2s22p3 Oxygen 8 1s2 2s22p4 Fluorine 9 1s2 2s22p5 Neon 10 1s2 2s22p6 Period 3 Sodium 11 1s2 2s22p63s1 Magnesium 12 1s2 2s22p63s2 Aluminum 13 

7 0
3 years ago
Which of these equations is balanced?
kicyunya [14]
I would think that b would be the right answer
7 0
3 years ago
35.0 grams of nitrogen gas reacts with 60.0 grams of hydrogen gas: N2 + 3H2--> 2NH3
Misha Larkins [42]

Explanation:

Moles of N2 = 35.0g / (28g/mol) = 1.25mol

Moles of H2 = 60.0g / (2g/mol) = 30.0mol

Since 1.25mol * 3 < 30.0mol, nitrogen is limiting.

Moles of NH3 = 1.25mol * 2 = 2.50mol.

Mass of NH3 = 2.50mol * (17g/mol) = 42.5g.

30.0mol - 1.25mol * 3 = 26.25mol.

Excess mass of H2

= 26.25mol * (2g/mol) = 52.5g.

6 0
3 years ago
Select the two chemical reactions that adhere to the law of conservation of matter.
rodikova [14]

####3 ##################### 2AS###################

6 0
2 years ago
7moleNaCl<br> x 6.02E23moleculeNaCl<br> 1moleNaCl
kow [346]

Answer:go molecule you some b1tc1es

Explanation:

8 0
2 years ago
Other questions:
  • Name the process that changes matter into one or more new substances
    5·1 answer
  • Sodium sulfide reacts with hydrochloric acid to produce hydrosulfuric acid and sodium chloride. (you need to write and balance t
    8·1 answer
  • Table C: Known Specific Heat Values for Common
    8·2 answers
  • Solid cesium iodide has the same kind of crystal structure as CsCl which is pictured below: If the edge length of the unit cell
    12·1 answer
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • Which soup would likely be more flavorful, a nicely heated but not too hot to eat bowl of soup or a bowl of leftover soup direct
    12·2 answers
  • How many
    14·1 answer
  • How many moles of C6H12O6 does 8.2 x 1023 molecules represent
    6·2 answers
  • How much heat is needed to raise a 0.30 g piece of aluminum from 30.C to 150C? The specific heat of aluminum 0.900j/gC
    14·1 answer
  • Please help me i need yall will mark brainliest and 30 points!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!